Home / 112,063.40-167,864.70-77,042.60

Finding the Fourth Proportional to 112,063.40, 167,864.70 and 77,042.60

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Solution

The fourth proportional to 112,063.40, 167,864.70 and 77,042.60 is: 115,405.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,063.40 : 167,864.70 = 77,042.60 : x
  2. Step 2: Convert to fraction form
    112,063.40/167,864.70 = 77,042.60/x
  3. Step 3: Cross multiply
    112,063.40x = 167,864.70 × 77,042.60
  4. Step 4: Simplify right side
    112,063.40x = 12,932,732,936.22
  5. Step 5: Solve for x
    x = 12,932,732,936.22/112,063.40
  6. Step 6: Final answer
    x = 115,405.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.